public inbox for glibc-bugs@sourceware.org
help / color / mirror / Atom feed
From: "siddhesh at sourceware dot org" <sourceware-bugzilla@sourceware.org>
To: glibc-bugs@sourceware.org
Subject: [Bug locale/26224] iconv hangs when converting some invalid inputs from several IBM character sets (CVE-2020-27618)
Date: Fri, 06 Nov 2020 02:19:15 +0000 [thread overview]
Message-ID: <bug-26224-131-ZoW7ufEvqm@http.sourceware.org/bugzilla/> (raw)
In-Reply-To: <bug-26224-131@http.sourceware.org/bugzilla/>
https://sourceware.org/bugzilla/show_bug.cgi?id=26224
Siddhesh Poyarekar <siddhesh at sourceware dot org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Resolution|--- |FIXED
Status|NEW |RESOLVED
Target Milestone|--- |2.33
--- Comment #1 from Siddhesh Poyarekar <siddhesh at sourceware dot org> ---
Fixed by:
commit 9a99c682144bdbd40792ebf822fe9264e0376fb5
Author: Arjun Shankar <arjun@redhat.com>
Date: Wed Nov 4 12:19:38 2020 +0100
iconv: Accept redundant shift sequences in IBM1364 [BZ #26224]
The IBM1364, IBM1371, IBM1388, IBM1390 and IBM1399 character sets
share converter logic (iconvdata/ibm1364.c) which would reject
redundant shift sequences when processing input in these character
sets. This led to a hang in the iconv program (CVE-2020-27618).
This commit adjusts the converter to ignore redundant shift sequences
and adds test cases for iconv_prog hangs that would be triggered upon
their rejection. This brings the implementation in line with other
converters that also ignore redundant shift sequences (e.g. IBM930
etc., fixed in commit 692de4b3960d).
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
--
You are receiving this mail because:
You are on the CC list for the bug.
prev parent reply other threads:[~2020-11-06 2:19 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-09 20:21 [Bug locale/26224] New: iconv hangs when converting some invalid inputs from several IBM character sets arjun.is at lostca dot se
2020-07-09 20:22 ` [Bug locale/26224] " arjun.is at lostca dot se
2020-07-09 20:27 ` fweimer at redhat dot com
2020-07-09 20:43 ` fweimer at redhat dot com
2020-10-22 7:55 ` [Bug locale/26224] iconv hangs when converting some invalid inputs from several IBM character sets (CVE-2020-27618) siddhesh at sourceware dot org
2020-11-06 2:19 ` siddhesh at sourceware dot org [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=bug-26224-131-ZoW7ufEvqm@http.sourceware.org/bugzilla/ \
--to=sourceware-bugzilla@sourceware.org \
--cc=glibc-bugs@sourceware.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).